TY - JOUR

T1 - Prediction of Process Forces in Fiber Metal Laminate Stamping

AU - Hahn, Marlon

AU - Ben Khalifa, Noomane

AU - Shabaninejad, Arash

PY - 2018/3/1

Y1 - 2018/3/1

N2 - The stamping of fiber metal laminates (FMLs) at thermoforming temperature of the thermoplastic matrix is investigated. The studied FML types consist of a unidirectional carbon fiber-reinforced core that is attached to metal cover layers either made of a steel or magnesium alloy. An analytical model is established in order to predict the process forces during forming, which are the blankholder force required to make the metal covers yield plastically, the punch force, and the corresponding load distribution on the individual layers (outer layer, core layer, and inner layer). The global forces are primarily verified through experimental force measurements, while numerical simulations are mainly performed to assess the resulting load distribution with the help of strain distributions in the cover layers. The results show that the introduced model can be applied successfully if the stamp-forming process is dominated by friction-induced tensional loading rather than by bending.

AB - The stamping of fiber metal laminates (FMLs) at thermoforming temperature of the thermoplastic matrix is investigated. The studied FML types consist of a unidirectional carbon fiber-reinforced core that is attached to metal cover layers either made of a steel or magnesium alloy. An analytical model is established in order to predict the process forces during forming, which are the blankholder force required to make the metal covers yield plastically, the punch force, and the corresponding load distribution on the individual layers (outer layer, core layer, and inner layer). The global forces are primarily verified through experimental force measurements, while numerical simulations are mainly performed to assess the resulting load distribution with the help of strain distributions in the cover layers. The results show that the introduced model can be applied successfully if the stamp-forming process is dominated by friction-induced tensional loading rather than by bending.

KW - Engineering

KW - Alloy steel

KW - Bending (forming)

KW - Carbon

KW - Electric power plant loads

KW - Magnesium alloys

KW - Metals

KW - Stamping

KW - Steel fibers

KW - Strain

KW - Thermoforming

KW - Materials processing

KW - Modeling and stimulation

KW - Sheet metal forming

KW - Tube metal forming

UR - http://www.scopus.com/inward/record.url?scp=85039954434&partnerID=8YFLogxK

U2 - 10.1115/1.4038369

DO - 10.1115/1.4038369

M3 - Journal articles

AN - SCOPUS:85039954434

VL - 140

JO - Journal of Manufacturing Science and Engineering

JF - Journal of Manufacturing Science and Engineering

SN - 1087-1357

IS - 3

M1 - 0310021

ER -